A unified mechanism for unconfined deflagration-to-detonation transition in terrestrial chemical systems and type Ia supernovae [PDF]
Science, 2019 Achieving unconfined supersonic explosions In some forms of supernovae and chemical explosions, a flame moving at subsonic speeds (deflagration) spontaneously evolves into one driven by a supersonic shock (detonation), vastly increasing the power output.
A. Poludnenko +4 more
semanticscholar +1 more source
Generation of Cosmic rays in Historical Supernova Remnants [PDF]
EPJ Web of Conferences, 2013 We present the results of observations of two types of Galactic supernova remnants with the SHALON mirror Cherenkov telescope of Tien-Shan high-mountain Observatory: the shell-type supernova remnants Tycho, Cas A and IC 443; plerions Crab Nebula, 3c58(SN1181) and Geminga (probably plerion).
Sinitsyna V.Y., Sinitsyna V.G.
openaire +2 more sources
Neutrino treatment in multidimensional astrophysical simulations : a new spectral scheme [PDF]
, 2014 Neutrinos play a central role in modern physics and astrophysics. Their extremely weak interaction rate with baryons and other leptons makes their detection on the Earth difficult and challenging.
Perego, Albino
core +1 more source
A NEW MULTI-DIMENSIONAL GENERAL RELATIVISTIC NEUTRINO HYDRODYNAMICS CODE OF CORE-COLLAPSE SUPERNOVAE. III. GRAVITATIONAL WAVE SIGNALS FROM SUPERNOVA EXPLOSION MODELS [PDF]
, 2012 We present a detailed theoretical analysis of the gravitational wave (GW) signal of the post-bounce evolution of core-collapse supernovae (SNe), employing for the first time relativistic, two-dimensional explosion models with multi-group, three-flavor ...
B. Mueller, H. Janka, A. Marek
semanticscholar +1 more source
GENERAL RELATIVITY AND NEUTRINO-DRIVEN SUPERNOVA WINDS [PDF]
The R-Process, 2004 To date, detailed core-collapse supernova simulations have not succeeded in elucidating the explosion mechanism. But whatever the mechanism turns out to be, there will be a neutrino-heated outflow between the hot, newly-born neutron star and the outgoing supernova shock wave whose neutron richness, low density, and high temperature could provide ...
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The supernova-regulated ISM [PDF]
Astronomy & Astrophysics, 2018 Context.The forcing of interstellar turbulence, driven mainly by supernova (SN) explosions, is irrotational in nature, but the development of significant amounts of vorticity and helicity, accompanied by large-scale dynamo action, has been reported.Aim.Several earlier investigations examined vorticity production in simpler systems; here all the ...
M. J. Käpylä +3 more
openaire +6 more sources
A NEW MULTI-DIMENSIONAL GENERAL RELATIVISTIC NEUTRINO HYDRODYNAMICS CODE FOR CORE-COLLAPSE SUPERNOVAE. II. RELATIVISTIC EXPLOSION MODELS OF CORE-COLLAPSE SUPERNOVAE [PDF]
, 2012 We present the first two-dimensional general relativistic (GR) simulations of stellar core collapse and explosion with the CoCoNuT hydrodynamics code in combination with the Vertex solver for energy-dependent, three-flavor neutrino transport, using the ...
B. Müller, H. Janka, A. Marek
semanticscholar +1 more source
Exploring Fundamentally Three-dimensional Phenomena in High-fidelity Simulations of Core-collapse Supernovae [PDF]
Astrophysical Journal, 2018 The details of the physical mechanism that drives core-collapse supernovae (CCSNe) remain uncertain. While there is an emerging consensus on the qualitative outcome of detailed CCSN mechanism simulations in 2D, only recently have high-fidelity 3D ...
E. O’Connor, S. Couch
semanticscholar +1 more source
Precollapse Properties of Superluminous Supernovae and Long Gamma-Ray Burst Progenitor Models [PDF]
Astrophysical Journal, 2020 We analyze the properties of 42 rapidly rotating, low-metallicity, quasi-chemically homogeneously evolving stellar models in the mass range between 4 and 45 at the time of core collapse.
D. R. Aguilera-Dena +3 more
semanticscholar +1 more source
The Value of Progenitor Radius Measurements for Explosion Modeling of Type II-Plateau Supernovae [PDF]
Astrophysical Journal, 2020 Using Modules for Experiments in Stellar Astrophysics (MESA)+STELLA, we show that very different physical models can adequately reproduce a specific observed Type II-Plateau supernova (SN).
J. Goldberg, L. Bildsten
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